зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
2.9 KiB
C++
105 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_MEDIASOURCEDECODER_H_
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#define MOZILLA_MEDIASOURCEDECODER_H_
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#include "mozilla/Atomics.h"
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#include "mozilla/Attributes.h"
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#include "nsCOMPtr.h"
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#include "nsError.h"
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#include "MediaDecoder.h"
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#include "MediaFormatReader.h"
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class nsIStreamListener;
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namespace mozilla {
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class MediaResource;
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class MediaDecoderStateMachine;
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class SourceBufferDecoder;
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class TrackBuffer;
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enum MSRangeRemovalAction : uint8_t;
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class MediaSourceDemuxer;
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namespace dom {
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class HTMLMediaElement;
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class MediaSource;
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} // namespace dom
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class MediaSourceDecoder : public MediaDecoder
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{
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public:
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explicit MediaSourceDecoder(dom::HTMLMediaElement* aElement);
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MediaDecoder* Clone(MediaDecoderOwner* aOwner) override;
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MediaDecoderStateMachine* CreateStateMachine() override;
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nsresult Load(nsIStreamListener**) override;
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media::TimeIntervals GetSeekable() override;
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media::TimeIntervals GetBuffered() override;
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// We can't do this in the constructor because we don't know what type of
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// media we're dealing with by that point.
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void NotifyDormantSupported(bool aSupported)
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{
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MOZ_ASSERT(NS_IsMainThread());
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mDormantSupported = aSupported;
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}
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void Shutdown() override;
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static already_AddRefed<MediaResource> CreateResource(nsIPrincipal* aPrincipal = nullptr);
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void AttachMediaSource(dom::MediaSource* aMediaSource);
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void DetachMediaSource();
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void Ended(bool aEnded);
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// Return the duration of the video in seconds.
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double GetDuration() override;
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void SetInitialDuration(int64_t aDuration);
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void SetMediaSourceDuration(double aDuration);
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MediaSourceDemuxer* GetDemuxer()
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{
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return mDemuxer;
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}
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// Returns a string describing the state of the MediaSource internal
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// buffered data. Used for debugging purposes.
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void GetMozDebugReaderData(nsAString& aString) override;
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void AddSizeOfResources(ResourceSizes* aSizes) override;
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MediaDecoderOwner::NextFrameStatus NextFrameBufferedStatus() override;
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bool CanPlayThrough() override;
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void NotifyWaitingForKey() override;
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MediaEventSource<void>* WaitingForKeyEvent() override;
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private:
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void DoSetMediaSourceDuration(double aDuration);
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media::TimeInterval ClampIntervalToEnd(const media::TimeInterval& aInterval);
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// The owning MediaSource holds a strong reference to this decoder, and
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// calls Attach/DetachMediaSource on this decoder to set and clear
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// mMediaSource.
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dom::MediaSource* mMediaSource;
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RefPtr<MediaSourceDemuxer> mDemuxer;
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RefPtr<MediaFormatReader> mReader;
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MediaEventProducer<void> mWaitingForKeyEvent;
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bool mEnded;
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};
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} // namespace mozilla
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#endif /* MOZILLA_MEDIASOURCEDECODER_H_ */
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